Testing device for water systems.



E. KENNEDY. TESTING DEVICE FOR WATER SYSTEMS. APPLICATION min JAN. 18,m5.

1,155,821. r Patented ct. 5,1915."

EDWA'RD KENNEDY, OF NEW YORK, N Y

'rnsrme DEVICE iron WATER SYSTEMS.

Specification of Letters Patent.

- Application filed January 18, 1915. Serial No. 2,962.

ToaZZ whom it may concern:

Beit known that I, EDWARD KENNEDY,-a-

citizen of the United States of America, and

a resident of the borough of the Bronx, in the city of New York, in theState of New York, have invented certain new and useful Improvements inTesting Devices for Wa- Xt'er Systems, of which the following is aspecification.

This invention relates to means usable in the construction of buildingsfor testing the pipe systems thereof.

The object of the invention isito provide a device of this characterusable in connection with the trap at the base of the sewer system andhaving valved connections with both legs of the trap, whichfacilitates-the drawing oif and discharge into the sewer of the testwater after the testing operation is completed. In the drawings, Figure1 is a front elevation of a house trap constructed according to myinvention, with testing apparatus in-place; Fig. 2 is an end viewthereof; and, Fig. 3 is a sectional view of a portion of my improvedtrap with testing apparatus re moved.

Similar reference characters designate corresponding parts throughoutthe several views. v

Referring to the drawings, and more particularly to Fig. 1 thereof. theinvention comprises a house trap 1 at the lower end of the plumbingsystem. having an arm 2 connected to the house system, and an arm 3connected to the street sewer, and provided respectively with inlet anddischarge openings l and 5. The arm 2 is of a larger diameter than thearm 3 and the inlet opening el, and is preferably of the size known a tothe trade as one size larger than the said arm 3 and inlet opening. Suchconstruction allows of the easy insertion by the hand of abushing,hereinafter more fully described, and also permits the trap tobe readily cleaned by the hand. The inlet opening 4 is interiorlythreaded, as at 6. and is provided with a flange 7, the said threadedportion having an inner diameter of a greater width than the innerdiameter of the inlet' pipe 8, which is fitted and calked into the saidinlet opening. When the construction of the'building and plumbing,system is completed, and it is desired to test the same, a reducing plug9 threaded interiorly and exteriorly, and provided with anintegral nut10 is inserted in the arm-2 through the open end thereof, and is screwedinto; the

opening-3, first by hand, and then further screwed and tightened bya-ratchet wrench or the like.

An elbow feed pipe comprises the. following parts, or their equivalents,a horizontal Patented Oct. 5. 1915.

member 11, a vertical member 13, a connecting elbow joint 12, anextension 15 having a valve 16, and a T c'oupling l-lconnecting theextension 15 with the vertical member 13. An elbow discharge pipe 17 isprovided with a mlve '18 and the horizontal arm thereof is connectedwith the elbow feed pipe, preferably by the-intermediate nipple of the Tcoupling 14, and its opposite end is arranged to discharge into the offor outlet leg of the U-shaped trap. These valved connections enable theelbow feed pipe to feed the test water to the house system. through thepipe 8 thereof when the valve 18 is closed and the valve 16 is open andin connection with the elbowdischarge pipe 17 to discharge the testwater from the house pipe system into the off leg 3 of the trap andthence to the sewer when the valve 16 is closed and the valve18 is open.These various parts to be fitted into the trap may be very readilyconstructed from standard stock.

When it is desired to test .the system, the valve 16 is opened, thevalve 18 .closed,-and water from the supply pipe is admitted through thebushing 9 into the system of pipes to be tested until the same arefilled. When the test is completed, or if there are any repairs to bemade, the valve 16 is closed, valve 18 opened, allowing the water to runout through the test fitting into the outlet leg of the trap to thesewer, and the repairs made if necessary. The system having been thustested." the pipes and bushing 9' are removed, a bushing or bush-nipple19,

having its inner diameter equal to that of the pipe 8, is screwed ,byhand into the opening 3, so as to give the inlet a smooth andunobstructed surface, and a plug 20 1s screwed, calked, or otherwlsesecured, in the end of the arm 2, thereby closing the ends of the trapfor ordinary use.

In this construction, I have provided a most practical and efficienttesting means,

which a true testing may be -accome 'plished, there being no points togive way to pressure as in a device employing rubber or other suchcol'inections.

I have illustrated and described a pre ferred andsatisfactory lorm oinrv invention, but it is obvious that changes ma be made therein withinthe spirit and scope tl'iereo'f, as defined in t1 3 appended claims,

and that the principle may be applied toother parts of the plumbingsystem.

I claim r 1. A device of the character described comprising a U-shapedtrap. both legs of which are provided with nipples at their upper endsand with lateral nipples, the inlet leg being of larger diameter thanthe outlet leg, the lateral nipple of the inlet leg having a.screw-tln'ea(.led throat of larger diameter than the inlet pipeconnected with said nipple, a testing apparatus comprising a reducingplug adapted to engage said throat, a T coupling, a pipe connecting SaidT coupling with said reducing plug. a valved pipe adapted to connectsaid T coupling with-a water supply pipe and a 'alved pipe forconnecting said T. coupling with the outlet legvot said trap.

A device of the character described comprising a U-shape trap, both legsof which are provided with nipples at their -upper ends and withlateral. nipples, the inlet leg being of larger diameter than the outletleg. the lateral nipple oi the inlet leg having a screwthreaded throatof larger diameter than the inlet pipe connected with said nipple, atesting apparatus comprising a reducing plug adapted to engage saidthreat. a T coupling, a pipe con necting said T coupling with saidreducing plug a valvedpipe adapted to connect said T coupling with awater supply pipe and a valved pipe for connecting said T coupling withthe outlet leg of said trap, and a bushing interchangeable with saidtest reducing plug and adapted to make said threaded throat flush withthe inlet pipe when the test device is not in use.

3. A device of the character described comprising a U-shaped sewer traphaving lateral inlet and outlet openings on its respective legs: areducing plug engaging said inlet opening, an elbow feed pipe whereofthe horizontal member is connected with said plug within the inlet legof said trap and the vertical member extends outward through the top ofsaid leg, a valved discharge pipe connected at one end with said elbowpipe and delivering into the outlet leg of said trap, and a valvedsupply pipe connected with said elbow feed pipe above the connectiontherewith of said discharge pipe, said elbow feed pipe being adapted tosupply test water to the pipe systembeing tested and in conjunction withsaid 'alved discharge pipe to deliver the test water from said systeminto the ott leg of said trap.

In testimony that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing Witnesses.

E 1 )VA R'I) K EN E I) Y.

lVitnesses I). LEWIS MATTERN, Asnnn BLUM.

Copies of this patent may he obtained for five cents each, by addressingthe Gommissioner of Patents, Washington, D. C.

